What they do:
Automatically write and update internal docs with every code commit.
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HQ: San Francisco, CA, United States
Top B2B Software Startups in California
This list has 2,349 startups and was last updated on Oct 15, 2026. 592 of them are hiring right now. Biggest hubs: San Francisco (2,110), Los Angeles (79), and San Diego (12). Largest teams: Stripe, Deel, and GrubMarket. Latest round: Modal raised $750M (Oct 14, 2026).
2,349 startupsPage 30 of 66
What they do:
Self-Driving CI: fast AI-native GitHub Actions runners
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HQ: San Francisco, CA, United States
What they do:
Build and ship native Swift apps with AI
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HQ: San Francisco, CA, United States
What they do:
Cursor for Email
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HQ: San Francisco, CA, United States
What they do:
Building medical school for AI Agents
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HQ: San Francisco, CA, United States
What they do:
AI content manager that grows your company's online presence
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HQ: San Francisco, CA, United States
What they do:
Truckload Planning at Machine Precision
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HQ: San Francisco, CA, United States
What they do:
AI employees trained on your firm's workflows.
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HQ: San Francisco, CA, United States
What they do:
Production infrastructure on autopilot
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HQ: San Francisco, CA, United States
What they do:
Digital transformation for real economy businesses
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HQ: San Francisco, CA, United States
What they do:
Studio-Grade Design at Scale
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HQ: San Francisco, CA, United States
What they do:
Continuous AI pentesting that finds and fixes vulnerabilities
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HQ: San Francisco, CA, United States
What they do:
AI clerks that automate your payables
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HQ: San Francisco, CA, United States
What they do:
Expressive conversational AI
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HQ: San Francisco, CA, United States
What they do:
Team chat to command all your company's coding agents
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HQ: San Francisco, CA, United States
What they do:
Insurance risk layer for physical AI
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HQ: San Francisco, CA, United States
What they do:
AI for Corporate Security Cameras
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HQ: San Francisco, CA, United States
What they do:
The AI-Native Immigration Law Firm
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HQ: San Francisco, CA, United States
What they do:
Vanta for hardware
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HQ: San Francisco, CA, United States
What they do:
UI building blocks for the agentic internet
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HQ: San Francisco, CA, United States
What they do:
Financial infrastructure for the agent economy
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HQ: San Francisco, CA, United States
What they do:
LLM context compression for better accuracy
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HQ: San Francisco, CA, United States
What they do:
AI production engineer for regulated industries
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HQ: San Francisco, CA, United States
What they do:
Work with agents that already know you
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HQ: San Francisco, CA, United States
What they do:
AI Agents for Government Affairs
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HQ: San Francisco, CA, United States
What they do:
Frontier AI Defenses for Social Engineering Attacks
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HQ: San Francisco, CA, United States
What they do:
Evals, RL environments and training data for creative tasks
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HQ: San Francisco, CA, United States
What they do:
Intelligence for cultural institutions
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HQ: San Francisco, CA, United States
What they do:
Evals for humans
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HQ: San Francisco, CA, United States
What they do:
Your Capable Desktop AI Companion
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HQ: Irvine, CA, United States
What they do:
Autonomous operations for industrial distributors
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HQ: San Francisco, CA, United States
What they do:
Platform + FDEs that rebuild enterprises agent-first
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HQ: San Francisco, CA, United States
What they do:
Helping your company find 10x engineers.
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HQ: San Francisco, CA, United States
What they do:
Simulations of real people for market research
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HQ: San Francisco, CA, United States
What they do:
A personal or team assistant that works while you sleep
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HQ: San Francisco, CA, United States
What they do:
agents for the rest of us
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HQ: San Francisco, CA, United States